Vol. 11, Special Issue 1 (2022)

Author(s):
D Rambabu, V Ravinder Reddy, SV Rama Rao, J Narasimha and M Shashi Kumar

Abstract:
Using 600 day-old commercial broiler chicks, a 6-week growth trial in broilers was undertaken in a completely randomized design (CRD) with twelve nutritional treatments (Ven Cobb). The chicks were purchased, wing banded, individually weighed, and randomly assigned to one of twelve treatments, each with ten replications and five chicks per duplicate. The chicks were raised in battery brooders that provided the best brooding conditions possible. During the pre-starter (0-14 days), starter (15-28 days), and finisher (0.95, 0.98, 1.01, and 1.04) periods, the experimental diets were created with varied quantities of lysine (1.18, 1.23, 1.28, and 1.33). (29-42d). In all three phases, each level of lysine equaled three levels of methionine (90, 100 and 110 percent of the Cobb recommendation). The addition of lysine and methionine to broiler diets resulted in a considerable increase in breast muscle yield, but had no effect on dressing percentage, thigh yield, liver, heart, or abdominal fat weight, according to carcass studies.